1. Internal Medicine A, Shamir (Assaf Harofeh) Medical Center, Zerifin, Israel
2. Sackler School of Medicine, Tel-Aviv University, Tel-Aviv, Israel
3. Department of Obstetrics and Gynecology, Shamir (Assaf Harofeh) Medical Center, Zerifin, Israel
4. Clinical Microbiology Laboratory, Shamir (Assaf Harofeh) Medical Center, Zerifin, Israel
5. Government Central Laboratories, Israeli Ministry of Health, Jerusalem, Israel
6. Unit of Infection Control, Shamir (Assaf Harofeh) Medical Center, Zerifin, Israel